Fluke 931 Contact and Non-contact Tachometer

Fluke 931 Contact and Non-contact Tachometer

The Fluke 931 is a handheld tachometer that combines contact and non-contact speed measurement, accurately measuring RPM or surface speed on rotating machinery. The Fluke 931 adds contact measurement, providing greater flexibility for technicians.

Specification:

1. Dual Measurement Modes – Supports both contact and non-contact RPM measurement for versatility.
2. Wide RPM Range – Measures 6 to 99,999 RPM (non-contact) and 6 to 19,999 RPM (contact) with ±0.02% accuracy.
3. Laser Targeting for Precision – Ensures accurate non-contact measurements from a safe distance.
4. Multiple Measurement Units – Displays readings in RPM, RPS, m/min, and ft/min for various applications.
5. Large Backlit LCD Display – Provides clear visibility in dimly lit environments.
6. Memory Function – Stores last, max, and min RPM values for easy reference.
7. Durable and Ergonomic Design – Compact and lightweight for convenient one-handed operation.
8. Battery-Powered for Portability – Operates on two AA batteries for extended use.

Technical Specifications:

Measurement Mode: Contact and Non-Contact

Non-Contact RPM Range: 6 – 99,999 RPM

Contact RPM Range: 6 – 19,999 RPM

Accuracy: ±0.02% ±1 digit

Measurement Distance (Non-Contact): 50mm to 300mm (2 to 12 inches)

Units of Measurement: RPM, RPS, m/min, ft/min

Memory Function: Last, max, and min RPM storage

Display Type: Large backlit LCD

Power Supply: 2 x AA batteries

Auto Shut-Off: Yes (after inactivity)

Dimensions: 175 x 60 x 28 mm

Weight: Approx. 200g (including batteries)

Product Description:

The Fluke 931 Contact and Non-Contact Tachometer is a versatile, high-accuracy RPM measuring tool designed for industrial, mechanical, and maintenance professionals. Offering both contact and non-contact measurement modes, it ensures precise rotational speed measurements for motors, fans, conveyors, and other rotating equipment.

With a wide measurement range (6 – 99,999 RPM non-contact, 6 – 19,999 RPM contact) and ±0.02% accuracy, the Fluke 931 provides fast and stable readings in various applications. The laser targeting system ensures safe, contact-free operation, while the large backlit LCD display enhances visibility in all conditions. Its memory function stores last, max, and min RPM values, making it easy to track performance over time.

Designed for durability and ease of use, this compact, battery-powered tachometer is an essential tool for equipment monitoring, troubleshooting, and performance diagnostics in mechanical and industrial environments.

Key Features

• 6-digit backlight display reads the data clearly
• Signal detection reminder avoids invalid detection actions
• Maximum/minimum/average value and final readings
• Setting/Turning off the automatic power-off function
• Small size and easy to hold
• Easy switching of the contact and non-contact measurement modes
• Different speed measuring heads and rotational speeds adapt to different measurement occasions
• 1-year warranty

Product Highlights

• 6-digit backlit display for easy reading
• Signal detection reminder reduces false readings
• Max/Min/Average and final readings
• Compact, rugged design with drop protection
• Quick switch between contact and non-contact modes (Fluke 931 only)
• Interchangeable speed heads for various measurements (Fluke 931 only)

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